| Period | Weighting | Quarter | ||||||
|---|---|---|---|---|---|---|---|---|
| Company | Longest | Shortest | Min. | Avg. | Max. | First | Latest | ↓ Count |
| American Research & Management Co. | 17 | 4 | 0.01% | 0.02% | 0.03% | Q2 2017 | Q3 2022 | 21 |
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This page lists all the filers that currently own Ameren Illinois Co 4.7 percent Pfd or have owned Ameren Illinois Co 4.7 percent Pfd in the past.